We have performed a theoretical calculation of the two photon absorption (TPA) in semiconducting quantum wires and quantum boxes in the presence of an electric field. Because of the anisotropic nature of these nanostructures, the TPA depends on the relative orientations of the electric field, the direction of polarization of the optical field, and the direction of carrier confinement in these semiconducting nanostructures. Numerical results show that the electric field decreases the TPA in quantum wires and boxes for any direction of the electric field and optical polarization. The TPA occurs below the zero field threshold energy of the semiconducting quantum wires and quantum boxes when an electric field is present. Moreover, the TPA has more structure in quantum boxes than that in quantum wires for any direction of electric field or polarization. In addition, the ratio of the TPA in the quantum wires and boxes to that in the bulk is also calculated as a function of the photon energy both in the presence and absence of the electric field.

1.
R.
Braunstein
,
Phys. Rev.
125
,
475
(
1962
).
2.
R.
Braunstein
and
N.
Ockman
,
Phys. Rev.
134
,
A499
(
1964
).
3.
M. H.
Weiler
,
E.
Hanamura
, and
B.
Lax
,
Phys. Rev.
171
,
949
(
1968
).
4.
E.
Girlanda
,
Il Nuovo Cimento B.
6
,
53
(
1971
).
5.
6.
A.
Pasquarello
and
A.
Quattropani
,
Phys. Rev. B
38
,
6206
(
1988
).
7.
A.
Pasquarello
and
A.
Quattropani
,
Phys. Rev. B
41
,
12728
(
1990
).
8.
9.
A.
Pasquarello
and
A.
Quattropani
,
Phys. Rev. B
42
,
9073
(
1990
).
10.
L. A.
Padilha
,
J.
Fu
,
D. J.
Hagan
,
E. W.
Van Stryland
,
C. L.
Cesar
,
L. C.
Barbosa
,
D.
Buso
, and
A.
Marucci
,
Phys. Rev. B
75
,
075325
(
2007
).
11.
A. V.
Fedorov
,
A. V.
Baranov
, and
K.
Inoue
,
Phys. Rev. B
54
,
8627
(
1996
).
12.
13.
C. X.
Xia
and
H. N.
Spector
, “Nonlinear Franz-Keldysh effect: two photon absorption in semiconducting quantum wells,” (unpublished).
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